Device for utilizing the heat and products of evaporation



(No Model.)

0! L. F. BROWNE. I

THE HEAT'AND PRODUCTS OP EVAPORATION. Patented Dec. 13,1881.

DEVICE FOR UTILIZING I WITNESSES:

2 Sheets+Sheet 1.

(No Model.) I 2 Sheets-Sheet 2.

0.- L. F. BROWN'E.

DEVICE FOR UTILIZING THE HEAT AND PRODUUT$ OF EVAPORA'I'ION. No.250,707.. Patented Dad. 13,1881.

WITNESSES: INVENTUR:

UNITED STATES PATENT OFFicE.

OLIVER L. F. BROWNE, OF SYRACUSE, NEW YORK.

DEVICE FOR UTILIZING THE HEAT AND PRODUCTS 0F EVAPORATION.

SPECIFICATION formingpart of Letters Patent No. 250,707, dated December13, 1881,

I Application filed November 4, 1881. (No model.)

To all whom it may concern:

Be it known that I, OLIVER L. F. BROWNE, of Syracuse, in the county ofOnondaga in the State of New York, have invented new and usefulImprovements in Devices for Utilizing the Heat and Products ofEvaporation, of which the following, taken in connection with theaccompanying drawings, is a full, clear, and exact description.

The chiefobject of this invention is to utilize the heat and products ofsteam or vapor generated in the process of evaporating liquids.

The invention consists, essentially, in the combination,\vith anevaporating-vessel or series ot'such vessels, of a receptacle adapted tocollect the vapor arising from said evaporating vessel or "essels, avapor-duct extended from said receptacle, a pump or suction-fanconnected to the vapor-duct to assist the passage of vapor, and variousother devices connected with said duct to absorb therefrom the heat andto utilize said heat and also the products of condensation in thevapor-duct.

It also consists in the combination, with the aforesaid apparatus, ofauxiliary evaporating appliances, arranged to receive that portion ofthe liquid which is in excess of the capacity of the before set forthevaporating apparatus; and itfurthermore consists in a novelconstruction of a removable cover or receptacle and means of applyingthe same and a ventiduct to the evaporating-vessel and it also consistsin a novel arrangement for closing the valve of the ventiductautomatically with the opening of the lid or cover of theevaporating-vessel, all as hereinafter more fully explained, and setforth in the claims.

In the annexed drawings, Figurel is an end view of an evaporatingapparatus embodying my improvements, a portion of the evaporatingvesselsor condensers being shown in section to better illustrate the means ofutilizing the heat and products of vapor passing through the ventiductof the primarily-heated evaporating-vessel. Fig. 2,is aplan View of theaforesaid apparatus, and Fig. 3 is an enlarged detail view of theconstruction of the cover and means of applying the same and theventiduct to the evaporating-vessel.

Similar letters of reference indicate correspondin g parts in all thefigures.

V V represent a series of kettles or evaporating-vessels set in aprolonged fire-arch, A, in any ordinary manner. The top of said kettlesis provided with a vertical extension, [6,WI1IOI1 may be either cast onthe kettles or formed separately and fitted to the kettle. The saidextension to is provided with a thimble, b, for the attachment of theventiduct or vapor-duct hereinafter described. v

To the top of the extension a is hinged a lid or cover, B, which servesto confine the steam or vapor underneath said cover and within thevapor-receptacle formed by the extension to.

To the under side of the cover B, I apply a diaphragm, c,with aspacebetween them. This diaphragm is perforated so as to produce around theperforations d an upward-projecting burr or flange, which forms abarrier to the passage of the water of condensation from between thediaphragm and cover down through the aforesaid perforations and back tothe evaporatingvessel. The cover and its diaphragm are made crowning andsloping to one side, so as to cause the aforesaid water of condensationto run 0% from the diaphragm and to be conducted over the edge of theevaporating-vessel by the overlapping edge of the diaphragm.

0 represents the vapor-duct connected to the thimble b of theevaporating vessel V. Said duct is provided with a valve, 0, which isweighted so as to normally stand in an open position. By means of anarm,f, on the outer end of the axis of the valve, engaging with a cam,g, on the cover or lid B, the valve is swung into a closed positionautomatically with the opening of the lid B. The vapor-duct O isextended to and passes in a tortuous or sinuous course through vats orevaporatingvessels D and F, situated in any convenient position; and tothe end of the aforesaid duct is connected either a pump or asuction-fan, G, as shownin the annexed drawings, said suction-fan aidingthe passage of the vapor through the duct O, and also preventing theescape of vapor through loose joints in the vapor receptacle or ductconnected therewith, and thus obviating the necessity of carefully andexpensively constructed steam-tight joints. The arrangement illustratedin the annexed drawings is especially designed for the manufacture ofsalt from natural brine. The vessel D, which is the most remote from thesource of heat, and which is heated by the already partially cooledvapor pipe, receives the crude brine, an d is designed to reduce thesame to saturation, or about 100 salinometer. The brine passes from thevessel D to a tank, E, in which it deposits its impurities, and thenceby a pipe, n, to another evaporating-vessel, F, which first receives thevapor-duct O, and is subjected to greater heat than the vessel D. In thevessel F the saturated brine is reduced to salt.

H represents an evaporating-vessel or vat, designed as an auxiliarymeans for completing the process of evaporating the brine andcrystallizing and graining the salt, said vessel being employed wheneverthe vapor-duct in the vessel F is found incapable of furnishingsufficient heat to evaporate the purified and saturated brine as rapidlyas it is furnished by the vessel D. The brine can be drawn into thevessel H either direct from the vessel D, by a pipe, m, or from the tankE by the before described pipe at, which has a two-way cock, 0, whichallows the brine to be shut off from the vessel F and turned intothevessel H. The auxiliaryevaporating-vessel H is heated either by livesteam or by exhaust-steam derived from the boiler of the engine usuallyemployed about salt-works, said steam being conducted to the vessel H bya pipe, t', which is extended in a serpentine or tortuous course throughsaid vessel. A pipe, j, extended from the end of the tortuous pipe t' tothe water-space of the boiler and provided with a check-valve orinjector, h, returns the condensed steam to the boiler.

It will be observed that the vats or vessels act as condensers on thevapor-duct G. The products of condensation of the vapor in the duct 0are utilized by means of a pipe, 7a, which taps the vapor-duct O at oneor more of its lowest points and leads to a suitable receptacle, R, inwhich to collect the products of condensation for further uses. Bysuitable traps, Z, on the pipe is the ingress of air through said pipeand to the duct 0 is prevented.

In order to make the fan G serve the double purpose of producing a draftin the vaporduct 0 and a blast on the fire of the furnace A, I connectto the discharge end of the fan a duct,-L, and extend the said duct tothe furnace and direct its discharge to the most effective part thereof.I

Havi'ug described myinvention, what I claim as new, and desire to secureby Letters Patcut, is-

1. An evaporating apparatus comprising two or more evaporating-vesselsor sets of such vessels, the primary heating agent being applied to thefirst vessel or set of vessels, and the succeeding vessels being heatedby the vapor generated in the preceding vessel and conducted to the saidsucceeding vessels by suitable ducts or passages, aided by the draftintroduced by a pump 'or suction-fan, substantially as set forth.

. 2. The within-described means of utilizing the heat and products ofcondensation, consisting in the combination, with an evaporating-vesselor series of such vessels, of a receptacle adapted to collect the vaporarising from said evaporating vessel or vessels, a vaporduct connectedwith said receptacle, a condenser or condensers applied to thevaporduct, a trap to prevent the ingress of air through said duct, areceptacle to collect the products of condensation, and a suction-fan orpump connected to the vapor-duct, all as and for the purpose set forth.

3. The combination, with an evaporatingvessel or series of such vessels,of a receptacle adapted to collect the vapor from said vessels, avapor-duct connected with said receptacle, a condenser applied to saidduct, and a pump or suction-fan connected with the vaporduct and havingits discharge directed to a furnace to apply thereto a blast,substantially as set forth.

4. In combination with the evaporating-vessel D, heated by thevapor-duct O, and the purifying-tank E, the auxiliary evaporatingvesselH, heated by the auxiliary steam-pipe t, as shown and set forth.

5. The evaporating-vessel V, having the extension a, provided with thethimble b, and the lid B, hinged to said extension, as shown and setforth.

6. In combination with an evaporating-vessel, the cover B, having thediaphragm c, with steam-passages through it, and with a barrier aroundsaid passages to prevent the return of condensed steam to theevaporating-vessel, substantially as specified.

7. The combination, with the evaporatingvessel V and ventiduct O, thevalve 6, closed automatically by the opening of the lid B, as set forth.

In testimony whereof I have hereunto signed my name and affixed my seal,in the presence of two attesting witnesses, at Syracuse, in the countyof Onondaga,in the State of New York, this 29th day of October, 1881.

' OLIVER L. F. BROWNE. ]L. s]

Witnesses:

WVM. O. RAYMOND, O. H. DUELL.

